Non-Metallic Metal is the technique of painting shiny metal surfaces using only matte paints — no metallic pigments. The result, done well, looks more convincing than actual metallic paint because it mimics the way real polished metal reflects light rather than just scattering it.
It sounds backwards. Why avoid metallic paint to paint metal? Because metallic paints scatter light in every direction, regardless of your light source — they look shiny from any angle. Real polished metal reflects your environment directionally. NMM replicates that directionality with careful placement of highlights and shadows.
What NMM Actually Looks Like
The key is contrast. Polished metal has extreme value contrast — almost pure white highlights next to near-black shadows, with very little mid-tone. The transition between light and shadow is sharp rather than gradual.
The other key is shape. Light on a curved metal surface has a specific character: a bright specular highlight at the point closest to the light source, transitioning hard to dark on the shadow side. If you've ever looked at a chrome ball bearing, you've seen the shape NMM tries to recreate.
What You Need Before Starting
NMM is not a beginner technique. Before attempting it:
- Be comfortable with layering. You need to be able to place small amounts of paint precisely and build up value smoothly.
- Understand a colour wheel. Metallic surfaces reflect colour from their surroundings. Gold reflects warm oranges; silver reflects cooler blues and greys.
- Have a wet palette. NMM requires fine control over paint consistency. A dry palette makes this much harder.
If you can't yet blend two tones together smoothly, practice that first. NMM is controlled blending at high contrast.
The Basic Approach: Gold NMM
Gold NMM uses warm browns, yellows, and whites. A simple recipe:
- Basecoat with a mid-brown (Rhinox Hide or similar)
- Shadow with near-black in the deepest recesses
- Mid-tone with a golden yellow (Averland Sunset, Yriel Yellow)
- Highlight with a warm orange-yellow (Flash Gitz Yellow)
- Specular highlight with pure white at the brightest point
The specular highlight is what sells it. A single tiny spot of pure white, placed exactly where the light source would create the strongest reflection, creates the illusion of a polished surface.
The Basic Approach: Silver NMM
Silver NMM uses cool greys and whites. A simple recipe:
- Basecoat with mid-grey (Mechanicus Standard Grey)
- Shadow with near-black (Abaddon Black or Eshin Grey)
- Mid-tone with lighter grey (Dawnstone)
- Highlight with off-white (Ulthuan Grey)
- Specular highlight with pure white
The shadow on silver NMM is important — it needs to go close to pure black. The contrast between your darkest dark and brightest highlight is what creates the impression of reflectivity.
Common Mistakes
Too much mid-tone. NMM fails when it looks gradual rather than stark. The transition from dark to light needs to be abrupt. Push your contrast harder than feels natural.
Specular highlight in the wrong place. The brightest point should be where the light source most directly hits a convex surface facing the viewer. Think about your light source first, then place highlights accordingly.
Forgetting reflected colour. Pure gold NMM can look washed out without some orange and warm-red in the deepest areas. Real gold reflects warm environmental colours. Add a touch of red-orange to your shadow transitions.
Blending too smoothly. The transition from light to dark on polished metal can be almost a hard edge. Don't smooth everything.
Where to Practice
Don't practice NMM on a model you care about. Buy a few cheap resin models with large, simple armour surfaces — Space Marines work well for this. A flat pauldron is a better practice surface than a detailed sword.
Once you can do a convincing pauldron, transfer the technique to more complex surfaces. The principles are always the same: dark shadows, bright highlights, stark contrast, specular spot.
Ready to try? Our brush guide covers the tools that make fine highlight work easier.